Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 739 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same glass (c) how clear the water is
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) it turns to sand (d) no, salt passes through
3. 3.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) evaporating (d) winnowing
4. 4.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
5. 5.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
6. 6.🫗 Which of these is done by filtering? (a) bad grains from rice (b) bran from wheat flour (c) gravel from fine sand (d) tea leaves from tea
7. 7.True or false: small stones from dal is done by handpicking. (a) True (b) False
8. 8.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
9. 9.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) muddy water (d) a mirror
11. 11.True or false: tea leaves from tea is done by filtering. (a) True (b) False
12. 12.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
14. 14.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
15. 15.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
16. 16.🫗 Which of these is done by filtering? (a) bad grains from rice (b) sugar from sugar water (c) mud from water (d) salt from sea water
17. 17.🫗 How do we separate salt from sea water? (a) evaporating (b) sieving (c) filtering (d) handpicking
18. 18.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
19. 19.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
20. 20.True or false: salt from sea water is done by evaporating. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a balloon (d) a funnel
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) turmeric powder (d) a funnel
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bad grains from rice (c) salt from sea water (d) bran from wheat flour
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
27. 27.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) muddy water (d) a clean glass
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
32. 32.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) sieving (d) evaporating
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.True or false: sugar from sugar water is done by filtering. (a) True (b) False
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a clean glass (c) turmeric powder (d) yeast
36. 36.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) turmeric powder (d) a balloon
37. 37.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) muddy water (d) a battery cell
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a balloon
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same muddy water (d) the same glass

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